The Miami-Dade County plane took off around 5 a.m. and blanketed the 10-mile area surrounding Wynwood, which is the only place in the continental U.S. where the Zika virus is known to have been contracted locally. The licensed professional used Naled, a registered insecticide. Beekeepers were advised to keep their hives covered

The one-square-mile hot spot and nearby residential areas have been sprayed at ground level all week.